| 摘要 |
<p>An active transceiver circuit (412) is provided for transmission of a high bitrate data signal (166T) over and reception of a low bitrate data signal (177) from a single ended transmission medium (105) utilizing a common path for both transmission and reception, the single ended transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109). The transceiver circuit (412) comprises
an input port (401) for receiving a high bitrate input data signal (301),
an output port (402) for delivering a low bitrate output data signal (302),
a differential input/output port (403) for launching a high bitrate data signal (166T) into the single ended transmission medium (105) and for receiving a low bitrate data signal (177) from the single ended transmission medium (105),
a differential output driver (392) for receiving the high bitrate input data signal (301) and transmitting this signal to the differential input/output port (403), the latter port having an impedance (Z1) connected over it that has a first impedance value at frequencies of the frequency range of the low bitrate data signal, and a higher impedance value for higher frequencies.</p> |
